The hobhis peters co



(Nd-Model.) 4Sheets-Sheet 1.

B. A. DOBSON 8a E. APPENZELLER. GAEDING ENGINE.

No.469,8 35. PatentedMar. 1,1892.

(No Mode-1.) 4 Sheets-Sheet 3.

B. A. DOBSON & E. APP'EN'ZELLER. GARDIING ENGINE.

Patented Mar. 1, 1892.

m: NORRIS vans co, mow-mum, wnsumamu, u, c.

- 4 Sheets- Sheet 4. B. A. DOBSON &; E. APPENZELLER.

(Nov Model.)

GARDING ENGINE.

Patented Mar.'1-, 1892.

m: mam-us FEYERS c0. mommmui, wAsumc-Ion, u, c.

UNITED STATES PATENT OFFICE.

BENJAMIN ALFRED DOBSON, OF BOLTON, ENGLAND, AND EUGENE APPEN- ZELLER, OF ALOST, BELGIUM. I

CARDlNG-ENGINE.

SPECIFICATION forming part of Letters Patent No. 469,835, dated March 1, 1892. Application filed October 20, 1891. Serial No. 409,307. (No model.) Patentedin England July 25, 1891, No. 12,632.

To aZZ whom it may concern:

Be it known that We,.BENJAMIN ALFRED DOBSON, a subject of the Queen of Great Britain, residing at Bolton, in the county of Lancaster, England, and EUGENE APPENZEL- LER, a subject of the King of Belgium, residing at Alost, Belgium, have invented certain new and useful Improvements in Carding-Engines, (for which we have obtained Letters Patent in Great Britain, numbered 12,632, bearing date July 25, 1891,) of which the following is a specification.

Our invention relates to improvements in the slowing or piecing up motions of cardingengines; and it consists in certain novel arrangements and combinations of parts, whereby when the engine is working satisfactorily the cylinder and doffer are driven at the quick or working speed; but as soon as the sliver breaks or fails and ceases to pass into the coiler the speed of the doffer is reduced automatically, and it continues to run at the slow speed until the piecing of the sliver has been effected and the quick speed again set on; and in order that our invention may be fully understood and readily carried into efiect we will describe the same with reference to the accompanying four sheets of drawings.

Figure 1 is a plan view, partly in section, of our improved mechanism for driving the main cylinder, doffer, and taker-in of a carding-engine at the varying speeds required. Figs. 2 and 3 are detail views of parts of the mechanism shown in Fig. 1. Fig. 4 is a side elevation, and Fig. 6 an end elevation, of the mechanism for automatically reducing the speed of the doffer upon the failure of the sliver. Fig. 5 is a plan of the lower part of the mechanism shown in Fig. 4, and Fig. 7 is a plan of Fig. 6.

Similar letters and figures refer to similar parts throughout the several views.

The axes a b 0, respectively, of the main cylinder d, the doffere, and thetaker-in or lickerin f are supported, as usual, on the side framing 9 of the carding-engine.

Upon the shaft on of the main cylinder d are mounted a driving-pulley h and a loose pulley i. This driving-pulley h, instead of being keyed upon the shaft a, as customary, is connected by a stud j to a' faceplate 7c, which is fixed upon the shaft a by two set-screws 70. Consequently when the strap (not shown) is on the pulley h and the studj is in the position shown in Fig. 1, the two parts h and k are coupled and the main cylinder d is driven at the quick or working speed; but by removing the studj the strap will drive the pulley h, but not the face-plate 7c.

On the boss h of the driving-pulley h is fixed a broad pulley Z, and on the cylinder-shaft a and on the same side of the carding-engine is keyed or otherwise fixed a pulley m, which drives by a strap 'n a pulley 0, fixed on the taker-in shaft 0, on which is also fixed a broad pulley p, from which astrap q passes to a pair of fast and loose pulleys r and s, respectively mounted on a stud t. The stud t is supported in brackets g, one of which is secured upon the side framing g, and on the boss r of the fast pulley r is fixed a pinion a, which gears into the spur-wheel 1;, commonly called the doffer-wheel, and which is fixed on the doffer-shaft 1).

Supported in abracket g on the side fram- 7 5 ing g is a shaft to, upon which is mounted a pair of pulleys a; y, from which a strap .2 passes to the broad pulley Z, fixed on the boss of the driving-pulley h, as previously mentioned. Both the pulleys as y are loose on a boss 2, fixed on the shaft w, as shown in the detail views, Figs. 2 and 3; but on the side cover of the pulley y is a stud 3, carrying a pawl 4, which engages the teeth of a ratchet 5, mounted loosely on the shaft w. The pawl 8 4 is kept normally in gear with the ratchet 5 by means of a spring 6, which is preferably made, as shown, in the form of a clip embracing the boss of the ratchet 5, with which is also formed or to which is secured a pinion 9o 7, which gears with the dolfer-wheel o.

On the doffer-shaft b and at the other side of the cardingengine is mounted the usual pair of grinding-pulleys 8 and 9, from which a strap 10 passes to the grinding or cylinder end 5 pulley 11 on the cylinder-shaft a. This pul ley 11, however, instead of being fixed on the cylinder-shaft, as customary, is preferably mounted loosely on the boss of the comb-pulley 12, which is fixed on the cylinder-shaft a I00 and drives the doffer-comb (not shown) by a band in the usual way; but when the cylinder (1 is to be driven at the slow speed for grinding and stripping purposes the pulley 11 is connected to the comb-pulley 12 by a stud 13. By this arrangement we are enabled to keep the strap constantly on the pulleys 8 01-9 and 11 while the cylinder is carding, which is not the case when the cylinder end pulley 11 is fast upon the cylindershaft.

In operation, when the driving-strap is on the pulley h, and the latter is coupled to the face-plate 70 by the stud j, While at the same time the stud 13 is removed, so as to disconnect the cylinder end pulley 11 and the comb- 15 pulley 12, then the main cylinder (1 is driven at its quick speed, and by means of the pulley an, strap 12, and pulley 0 the taker-in f is driven and transmits the quick speed to the doffer e by means of the pulley p, strap q, pulley r, pinion u, and doffer-wheel 12. At this time, although the strap 2 may be on the pulley y, the latter is inoperative because the pawl 4 slips back over the teeth of the ratchet 5. When, however, the strap q is shifted from the pulley r to the loose pulley s, the dotfer loses its quick-speed driving and the pulley y, through the pawl 4, ratchet 5, pinion 7, and doffer-wheel 11, becomes the driver, and the doifer e is thus turned at its slow speed until 0 the strap q is again shifted to the pulley r.

We will now describe those parts of the mechanism by which the said strap is shifted automatically to give the slow speed to the dofier and so allow time for piecing when the sliver 3 5 breaks or fails.

Above the calender-rollers 14 (see Fig. 6) of the coiler is a spring-lever 15, which carries the sliver-funnel 16 and is jointed at 17 to a lever 18, fulcrumed at 19. The lever 18 is weighted at 20 sufficiently to counterpoise the strain of the sliver passing through the funnel 16 to the c'alendermollers 14, and at the lower end the lever 18 has a slot, into which takes the stud 21 of the sliding bar 22, sup- 5 ported in brackets 23, secured to the front plate 24 of the carding-engine, and near the other end of the sliding bar 22 is an incline 25. Bearing on the sliding bar 22 is one end of a pivoted bell-crank catch-lever 26, the other end of which is formed as a latch to engage a notched catchwheel 27, which is running loosely on the shaft 28 of the bottom roller of the pair of calender-rollers 29. The boss of this catch-wheel 27 is recessed to receive a rounded lug 30 on the catch-box 31, which is capable of moving longitudinally, but is prevented by a key or other means from turning axially independently of the calender-roller shaft 28, which is driven by the usual means.

63 (Not shown.) A spiral spring 32, inclosed within the catch-box 31 and compressed between the latter and a collar 33, fixed on the shaft 28, always tends to press the lug 30 into the recess of the catch-wheel 27 and so holds the two parts together when the card is working. The sliding catch-box 31 has a groove 34, into which takes the forked end of a lever 35, which is pivoted at 36, and at the other end carries a bowl 37, which works upon a lever 38, pivoted at 39 to the under side of the card front plate 24. On its upper surface, near where thebowl 37 rests, the lever 38 has an incline 40. One end of the lever 38 is connected to a spring 41, which constantly tends to pull it upward, and the other end of said lever has a catch 42, which latches a notched piece 43, secured on a shaft 44, which controls by an arm 45 and link 46 the lever 47, whichis centered at 48 and carries the strap-fork 49 for the strap g, by which the driving of the dofier is controlled. The shaft 44 is capable of being turned in its bearings 50, and is connected by a chain or equivalent 51 to the lever 38 and by an arm 52 to a spiral spring 53, and on it is also fixed a handle 54.

The action of the apparatus is as follows: When the card is at work at full speed, the doffer is being driven through the taker-in by the strap g at the quick speed, as already described, and so long as the sliver is passing through the funnel 16 into the coiler this condition of things is maintained; but when through breakage or failure the sliver is absent from the funnel 16, it is necessary to slow the dotfer in order to give time for piecing. As soon, then, as the sliver is absent from the funnel 16 the weight 20 pulls back the pivoted lever 18 thus moving the sliding bar 22 in the direction of the arrow, Fig. 6, and bringing the incline 25 under the catchlever 26. The upper end of the latter moving forward engages and stops the rotation of the catch-wheel 27, thereby forcing back the sliding catch-box 31 and with it the forked end of the lever 35, causing the bowl 37 to move down the incline 40. Immediately the spring 41 pulls up its end of the lever 38, thei'eby pulling the latch 42 out of gear with the notched piece 43 and allowing the spring 53 to raise the arm 52 and turn the shaft 44 partially round. This niovementof the shaft 44 is transmitted through the connecting parts 45 46 47 to the strap-fork 49, whereby the strap qis shifted from the pulley *r to the pulley s, and the dofier e is driven by the strap 2, pulley y, pawl 4, ratchet 5, and pinion 7, as

already described. When it is necessary to stop the doife'r altogether, the strap 2 is moved onto the loose pulley m. To restart thecard, the lever 18 is pulled forward to bring back the funnel 16 and the other parts controlled by the sliding bar 22 into the position shown in Fig. 6. Then the handle 54 is moved to turn back the shaft 44 and shift the strap q from the pulleys to the pulley 'r, the shaft 44 being again latched by the end of the lever 38.

For grinding and stripping purposes the carding-engine is first stopped to permit the stud j to be removedand the stud 13 inserted, so as to couple the cylinder en'dpulley 11 with The driving-strap is the comb -pulley 12.

then put on the pulley 71, and as the latter is now uncoupled from the face-plate 7c the cylinder is driven through the pulley l, strap a, and other parts composing the doffer slow motion, then through the pulley 8, strap 10, and cylinder end pulley 11, thus giving the slow speed required when grinding or stripping.

The grinding-rollers (not shown) are driven from the groove h" on the pulley h bya band or strap in the ordinary way.

While grinding, the strap 10, which drives the cylinder from the doffer, is open, but at other times this strap is crossed.

It will be seen that by our improvements we dispense with the ordinary swing-lever which usually carries the barrow-pulleys, and instead we employ the pair of pulleysr and s on a fixed axis, in combination With the second pair of pulleys 0c and y, also on a fixed axis, and the ratchet-gearing in connection with the last-n amed pulley. 7

Having now particularly described and ascertained the nature of our said invention and in What manner the same is to be performed, we declare that What we claim, and desire to secure by Letters Patent of the United States, is-

1. The combination, with the main cylinder of a carding-engine, a pair of drivingpulleys, such as pulleys h and i and the pulley m on said main cylinder, the strap n, the taker-in shaft, the pulleys 0 and p thereon, the strap q, the fixed axis 6, the pulleys r and s and pinion u thereon, and the spur-Wheel 'v for giving quick speed to the doffer,'of pulley l on the cylinder-shaft, strap 2, pulleys w and y, spring-pawl 4: ratchet 5, fixed axes w, and pinion 7 thereon for giving through spuras set forth.

2. The combination, with the main cylinder-shaft, and face-plate 7c, and comb-pulley 12, fixed thereon, of the driving-pulley h, and stud 7', and the cylinder end pulley l1, and stud 13, substantially as herein set forth, and for the several purposes specified.

3. The-combination, in a carding-engine, of the main cylinder-shaft and taker-in shaft, connections between the main shaft and the taker-in shaft, doffer-shaft, stud t, connections between doffer-shaft and stud 15, fast and loose pulleys r and s on stud t, belt q, shipper-lever 47, with fork 49, balanced lever carrying a funnel, sliding bar 22, connected to the lower end of the balanced lever, and connections between the sliding bar 22 and shipper-lever, whereby when the sliver breaks the belt q is shifted from the fast to the loose pulley on the stud, thereby stopping the dolfer, substantially as described.

In witness whereof We have hereunto set our hands in presence of two witnesses.

BENJAMIN. ALFRED DOBSON. EUGENE APPENZELLER. WVitnesses to the signature of the said Benjamin Alfred Dobson:

SAMUEL BROMLEY,

Clerk, 165 Clarence St, Bolton. WILLIAM BURTON MARKLAND,

Clerk, 1 Bury New Road, Bolton.

Witnesses to the signature of the said Eugene Appenzeller:

EDOUARD GELBY, Direcienr de filatnre d S. Denis-obourg Belgiqne.

EDOUARD CALLEBOUT, lVgociant en honblois, Alost. 

